How to add custom HTTP headers to deployed app

Question

How can I add custom HTTP headers to my app?

I deployed Cachet, I want to add security headers such as:

* Strict-Transport-Security
* Content-Security-Policy
* X-Frame-Options
* X-Content-Type-Options
* Referrer-Policy

Can I do so from Railway or do I need to do so via the app itself by modifying it?

0x5b62656e5d · Accepted Answer

You'd need to code your application to send those headers. Railway only hosts applications.